The siblings hit the stage at the ceremony, held at Madison Square Garden here, separately on Sunday, but they were determined to get something done as a duo just before their solo moments, reports dailymail.co.uk.

Taking to his Snapchat account ahead of the star-studded event in the Big Apple, Nick recorded his older brother getting an arrow tattooed into his hand by a body artist before his turn.

Nick got his design on his left bicep, pointing out, while his brother got the same on the right.

He later uploaded a photograph on his social networking site of their body art alongside the caption: “Boom”.